P3D twin SLR pentax ZX-M x2

[boris@xxxxxxxxxxxx (Boris Starosta)]

Wlad (and everyone):

I aquired my twin pentax bodies (ZX-M), wired up a connector cable (very
simply without diodes - out of forgetfulness, mainly), and shot a session
with it Saturday.  The cameras appeared to perform flawlessly.  The film
came back, and sync was good (although, I must admit, the subject was
fairly static).

I will report more on sync as opportunity permits me to take moving subjects.

One rather grave problem revealed itself however, as I tried to move the
session to flash photography.  The cameras were unable to trigger my flash
via sync cord.

In debugging, I measured the resistance across the hot shoe.  When the
shutter was open, the resistance fell to 300 Ohms.  My old K1000s would
have the resistance fall to zero - something I thought was standard -
simply a circuit being closed.

Is it normal to have this high resistance across the sync circuit in modern
cameras?  If so, how can I get my strobe kit to trigger, when it apparently
expects a zero (or at least lower) resistance across the trigger circuit?

Thanks in advance for any advice.

Boris

- Science is the part of culture that rubs against the world.
-
-                                     Stanislaw Lem, _His Master's Voice_

Boris Starosta                        boris@xxxxxxxxxxxx
Stereoscopic Art & 3-D Photography    http://www.starosta.com
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